The manufacturer of the laser marking machine analyzes the differences between MOPA and Q-switch lasers.
2019-06-17
Laser marking is a widely used application in our product packaging, especially in mechanical food packaging and electronic 3C products. Laser marking machines have replaced traditional marking equipment, significantly improving work efficiency and enhancing marking quality, which also improves the aesthetic appeal of product packaging. However, different product materials require matching laser sources, so the choice of laser type is crucial.
Pulsed fiber lasers are the main types of lasers used for marking, including Q-switching technology and MOPA technology. Since Q-switching technology emerged earlier, it has been introduced domestically for a long time and currently has a large application group, occupying a significant share of the laser marking application market. MOPA, on the other hand, is a new technology with latecomer advantages, and some people are still relatively unfamiliar with it. However, that's okay; let's discuss the differences between the two and what technical advantages they have.
1. Differences in marking applications between MOPA lasers and Q-switched lasers.
1. Application of surface removal on aluminum oxide thin plates:
Today's electronic products are becoming lighter and thinner. Many mobile phones, tablets, and computers use lightweight aluminum oxide as their outer shell. When using Q-switched lasers to mark conductive points on thin aluminum plates, it is easy to cause material deformation, resulting in a "bulge" on the back, which directly affects the aesthetic appearance. In contrast, using MOPA lasers with smaller pulse width parameters can prevent material deformation, and the background pattern is more delicate and bright white. This is because MOPA lasers use small pulse width parameters that allow the laser to stay on the material for a shorter time while having sufficient energy to remove the anodic layer. Therefore, for the surface removal of thin aluminum oxide plates, MOPA lasers are the better choice.
2. Application of black marking on anodized aluminum:
Using lasers to engrave black trademarks, models, and text on the surface of anodized aluminum materials has gradually been widely used by electronic manufacturers such as Apple, Huawei, ZTE, Lenovo, and Meizu on the shells of electronic products in the past two years. Currently, only MOPA lasers can process this type of application. MOPA lasers have a wide range of pulse width and pulse frequency adjustment, and using narrow pulse width and high frequency parameters can produce black effects on the material's surface. Different parameter combinations can also achieve different grayscale effects.
3. Precision processing applications in electronics, semiconductors, and ITO:
In precision processing of electronics, semiconductors, and ITO, fine line applications are often required. Due to its inherent structural limitations, Q-switched lasers cannot adjust pulse width parameters, making it difficult to achieve fine lines. In contrast, MOPA lasers can flexibly adjust pulse width and frequency parameters, allowing for fine lines with smooth edges without roughness.
In addition to the above application cases, there are many different application differences between MOPA lasers and Q-switched lasers. Here are some typical application cases listed in the following table:
From the above comparison, it can be seen that MOPA lasers can replace Q-switched lasers in many applications. In some more advanced applications, MOPA lasers are superior to Q-switched lasers.
Why do MOPA technology lasers have advantages over Q-switched lasers in applications? We will explain the parameter indicators of the two types of lasers one by one.
2. Differences in parameter indicators between MOPA technology lasers and Q-switched technology lasers.
Here, we select the parameters of a typical Q-switched laser on the market and the M6 series MOPA laser from Shenzhen JPT Laser for comparison:
Through comparison, it can be seen that the MOPA structure of the JPT M6 series laser has a large adjustment space in terms of pulse width, pulse frequency, and waveform control compared to Q-switched lasers. This allows for various parameter combinations during debugging to achieve the desired effects for different materials. If users need specific models, they can also modulate exclusive laser parameters to provide comprehensive laser application solutions for users.
About Us
Shenzhen SHINHOP Laser Equipment Co., Ltd. It is a scientific and technological enterprise specializing in the research and development, production and sales of industrial laser processing equipment. It has been deeply engaged in the new energy industry for 20 years, focusing on the non-standard customization of automatic lithium battery cell assembly line and module PACK production line. It has successively obtained the national high-tech and specialized new enterprise certification.
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Company Address：Building 6, Jingneng Science and Technology Environmental Protection Industrial Park, No.3 Baolong 2nd Road, Longgang District, Shenzhen City, Guangdong Province
Customer service hotline:18898357350
Customer service E-mail:info@shinhop.com
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